User`s guide

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If the router is running in Hub mode, the following will be displayed, with an option to
switch to Port Isolate mode.
Ethernet Hub group
On units with a built-in hub/switch, the Ethernet Hub Group parameter for each port is
normally set to 0. This means that all ports “belong” to the same hub. If required however,
the Hub Group parameter may be used to isolate specific ports to create separate hubs. For
example, if Ethernet 0 and Ethernet1 have their Group parameter set to 0 whilst Ethernet 2
and Ethernet 3 have their Group parameter set to 1, the unit will in effect be configured as
two 2-port hubs instead of one 4-port hub. This means that traffic on physical ports “LAN 0”
and “LAN 1” will not be visible to traffic on physical ports “LAN 2” and “LAN 3” (and vice
versa). Group numbers can be 0 – 3 or use 255 for an interface to be in all groups.
This parameter is not available on the web page when the unit is configured for Port Isolate
mode.
Metric
This parameter specifies the connected metric of an interface, changing this value will alter
the metric of dynamic routes created automatically for this interface. The default metric of a
connected interface is 1. By allowing the interface to have a higher value (lower priority),
static routes can take preference to interface generated dynamic routes. For normal
operation, leave this value unchanged.
MTU
This parameter is used to set the Maximum Transmit Unit for the specified interface. The
default value is 0 meaning that the MTU will either be 1504 (for units using a Kendin
Ethernet device) or 1500 (for non-Kendin devices). The non-zero, values must be greater
than 128 and not more than the default value. Values must also be multiples of 4 and the
unit will automatically adjust invalid values entered by the user. So, if the MTU is set to
1000, the largest IP packet that the unit will send is 1000 bytes.
Enable auto-negotiation
Selecting this option allows the router and the other Ethernet device it is connected to, to
auto-negotiate the speed and duplex of the Ethernet connection.
Speed (currently 100Base-T)
This parameter is used to select “10Base-T”, “100Base-T” or “Auto” mode. The currently
selected mode will be shown in brackets after the parameter name.
Note, enabling ‘Auto-negotiation’ AND manually setting the speed will only allow the
selected speed to be negotiated.
Duplex
This parameter is used to select “Full Duplex”, “Half Duplex” or “Auto” mode.
Note, enabling ‘Auto-negotiation’ AND manually setting the Duplex will only allow the
selected Duplex mode to be negotiated.
Max Rx rate
On models with multiple Ethernet interfaces, this parameter may be used to specify a
maximum data rate in kbps that the unit will receive on this interface. This may be useful in
applications where separate Ethernet interfaces are allocated to separate LANs and it is
necessary to prioritize traffic from one LAN over another.
Max Tx rate